Heat-non-conducting material.



PATLNTLD JAN. 16, 1906.

G. 1L MLLER A L. JARGK. HEAT NoN-001111111111111; MATERIAL.

APPLIG TION-ZLBD AUG. 20, 1904.

UNITED STATESVH PATENT OFFICE.

oUsTAv HEINRICH MI''LLEE, or KIEL, AND EDUARI') JAEcK, or HAMBURG,

GERMANY.

HEAT-NoN-ooNDuo-rme. MATERIAL.

Specification of Letters Patent.

Patented J an. 16, 1906.

Application filed August 20, 1904. Serial No. 221,560.

vented a new and useful Heat-Non-Conduct ing Material, adapted to be used for covering boilers, steamipes, and for other like ur; poses and by tfi the loss of heat is reduced to a minimum, of which the following is a specification.

The material is of a pasty constitution, having such a density as to resist to a very considerable extent expansion or distension due to the action of heat or a drying action or dampness.

An important technical advantage possessed by our material as compared with other heat-non-conducting means hitherto used consists in its easy application, whether on the perfectly fiat front surface of boilers or on ipes or more complicated surfaces or on tan s, &c., and the adhesive oWer of said material enables it to be applie Without its having to be 'bound around with Wire or fixed by any equivalent means hitherto found necessary.

Our improved heat-non-conductin material is composed of refractory clay, fibers of amianthus, infusory earth, Ground cork, vegetable fibers, yeast, and su fate of alumina,

or other analogous materials. ,I These materials are intimately mixed in suitable proportions by mixing machinery and constitute a moist tenacious mass which is ready to be used. This'mass, slightly ressed in suitable molds and afterward drier, may'be used in the form of shells around boilers orpipes. To fix these shells to a ipe or thehke, the latter is first covered witfia little of the pasty mass, andthe shells are then firmly ap lied. The joints between the edges of the she s are afterward filled in Withsonie of the pastyY mass, the whole forming a solid envelop cfrpablo of resisting high temperature, even up to 5000 centigrade. Further, the mass maybe fashioned or molded by a press into plates or slabs or into blocks, which may be used equally well in rcfrifferating installations or i or the protection of earns, iron-work, stonework of stoves e nd furnaces, the material being refractory and incombustible.

e use or application ofv ich The function of the yeast is to somewhat distend or lighten up the moist mass, whereby the latter acquires greater insulating power and becomes lighter and Inore elastic.

In the annexed'drawings various applications of our improved material are illustrated.

Figures l and 2 show an elbow or bend and a pipe coveredwith our material in the form of-shells and paste. vOn the bend'aa'thin coating l1 of the material is first applied, on which shells c are pressed. The part cl, on account of its being curved, is preferably entirely covered with pasty material. The pipe,

shown in Fig. 2 is covered in a similar manner.

Figs. 3 and 4 shovr a boiler-shell and its dome-covered With our material, the former figure being a sectional view on line A B of Fig. 4 and the latter a sectional view on line C D of-Fig. 3. While the cylindrical surfaces of the boiler e and of the domef are advantageously covered by shells g, the fiat front surfaces are covered with the material in a pasty condition.

Figs. 5 and 6 show a girder or beam and a column covered vby plates and shells formed of our improved material, the former figure being a side elevation and the latter a sectional end elevation on line E F of Fig. 5.

The' girder or beam z. is covered with nonconducting plates 'i and the column 7c with non-conducting shells Z.

What We claim our invention, and desire to secure by Letters Patent, is-

A heat-non-conducting material consisting of'refractory clay, fibers of amianthus, infusory'earth, ground cork, vegetable fibers,A

GUSTAV HEINRICH MLLER. EDUARI) JARCK.

lVitnosse-s:

W. (E. MIsoHKI, JUUUS ltorKE. 

